Adding a shell script variant of web assets generator

mostly just for silly comparison, as a shell scripting exercise I guess.

conway/gen-web-assets

@@ -1,8 +1,29 @@
 #!/bin/sh
 set -e
 
+case "$1" in
+    "shell")
+cat > _tmp.go <<EOWEBASSETSGO
+// WARNING: GENERATED FILE, NERDS! $(date)
+package conway
+
+const (
+    GAME_OF_LIFE_INDEX_HTML = \`
+$(cat web_assets/index.html | gzip -9 | base64)\`
+    NORMALIZE_CSS = \`
+$(curl -s http://necolas.github.com/normalize.css/2.0.1/normalize.css | gzip -9 | base64)\`
+    JQUERY_MIN_JS = \`
+$(curl -s http://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js | gzip -9 | base64)\`
+)
+EOWEBASSETSGO
+cat _tmp.go | gofmt > web_assets.go
+rm -v _tmp.go
+        ;;
+    *)
 cd web_assets
 go build -x .
 ./web_assets index.html > _tmp.go
 gofmt < _tmp.go > ../web_assets.go
 rm -vf _tmp.go
+        ;;
+esac